Ⅶ Operating Mode; General Mode; Configuration Mode - Ebyte E90-DTU Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.
3. The module will carry out cyclic log printing (can be turned on/off) every 500ms in the abnormal state to inform
the user of the current abnormal working state, and the format of the print log is shown in the following table:
Abnormal working condition
Overvoltage and overheating
unplugged antenna
Note: Exception log printing enable bit (bit2 of instruction register 04H) 0: off 1: on Default is 0 (off)
Ⅶ Operating mode
E90-DTU has two working modes, MOD pin is suspended, general mode, i.e. the radio communicates normally; MOD
pin is grounded, configuration mode.
Type

General mode

The user can access the registers through the serial port to control the working state
Configuration
of the radio, and the user can configure the module through the upper computer configuration
Mode
7.1 General mode
Type
The user can enter data through the serial port and the module will initiate wireless
Transmit
The module's wireless reception function is turned on, and wireless data will be output
Receive

7.2 Configuration Mode

Type
Transmit
Receive
Configuration
Copyright ©2012–2023， Chengdu Ebyte Electronic Technology Co.,Ltd.
undervoltage
overvoltage
过 overheat
Serial on, wireless on, transparent transmission (factory default mode)
Module operates in general mode (MOD pin suspended state)
via the serial port pins when received.
Module operating in configuration mode (MOD pin ground state)
User access to registers to configure module operating parameters
Print Log Format
Under Voltage!!!
Over Voltage!!!
Over Temperature!!!
Over Voltage & Over Temperature!!!
WARNING!!!: No antenna
Notes
software.
transmission.
Wireless transmitter shutdown
Wireless reception off
E90-DTU(xxxSL42) User Manual
12